Mojang has changed the chunk saving code in Minecraft Snapshot 12w21b, it seems that newly created chunks are not saved until they are dropped from the chunk cache. Unmined cannot access chunks until Minecraft saves them, so this will add a significant delay when using live map.
These delays could be completely eliminated by creating an API mod that acts a bridge between Unmined and Minecraft and can be used by Unmined to access unsaved chunk data and other in-game information like player positions in real-time. Unmined is not meant to be an in-game navigation tool since writing a mod is much better way to do this (I use Rei’s minimap), but updating the map as soon as possible can be important and showing player positions in real-time would be cool.
Writing an API mod and a Bukkit plugin would open the possibilities for adding in-game tools to Unmined like in-game editing, teleporting players, setting up permissions and protected areas, reverting user changes and more. Mapping a remote server would be also possible.
What do you think about this?